<!DOCTYPE html>
<html lang="en">

<head>
  <meta charset="UTF-8" />
  <meta name="viewport" content="width=device-width, initial-scale=1.0" />
  <meta http-equiv="X-UA-Compatible" content="ie=edge" />
  <title>Document</title>
</head>

<body>
  <script>
    //不绑定this
    var name = 'global name';
    const test = {
      name: 'object name',
      plainFunction: function () {
        console.log(this.name);
      },
      arrowFunction: function () {
        let fn = () => {
          console.log(this.name);
        };
        fn();
      },
    };

    test.plainFunction();
    test.arrowFunction();
  </script>
</body>

</html>